I measured by M.1910 in 9,5x57 M.-Sch.

The front bed in place measures exactly 0.100" from the top of the front sight to the bead, (the bead sticks out over the front sight). The spare bead in the grip trap measures 0.120".

I'm sure the following information is available online, but using a Lyman table in The Shooting Bible 1980 edition, page 426, a 0.020" difference should make a 4" difference of POI at 100 yards assuming your rifle is an "English Take-down Model", like mine, with a 23" barrel and a 19,1/2" sighting plane.

Shooting 260-grain Nolser accubond, (which feeds nicely from my magazine), at 2,250 fps and using a fine bead, (meaning the bead is at the bottom of the 100yd vee rear blade), the centre of the bullet group is 1.5" high @ 100 yards using the 0.100" bead.

BTW, I had my gunsmith file the front bead nice and mirror like and when I next went to the range I couldn't see it and had to smoke it. So take a lighter.

Regards.